Date: Thu, 02 Sep 2010 15:52:11 +0200 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-stable@freebsd.org Cc: freebsd-net@freebsd.org Subject: Re: 8-stable crashes in vmware (possible em driver issue?) Message-ID: <i5oa69$l2t$1@dough.gmane.org> In-Reply-To: <hm4fug$vku$1@dough.gmane.org> References: <hjg291$tvj$1@ger.gmane.org> <hm4fug$vku$1@dough.gmane.org>
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On 02/25/10 01:23, Ivan Voras wrote: > Ivan Voras wrote: >> I have a fairly recent 8-stable machine running under VMWare ESXi 3.5 >> (amd64 guest), which apparently crashes every few days from the same >> causes: >> >> em0: discard frame w/o packet header >> em0: discard frame w/o packet header >> em0: discard frame w/o packet header >> Panic string: sbsndptr: sockbuf 0xffffff007cca8c20 and mbuf >> 0xffffff00490a6400 clashing > > In case someone is interested or has an idea - on this machine I have > multiple crashed cores with similarily strange problems all connected > with networking and/or the em driver: ... It looks like the most probable culprit are stf (6to4) support and/or something dealing with stf routing (the machine was a stf gateway for a small subnet). When disabled, the crashes stop.
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